| first | 1. Preceding all others of a series or kind; the ordinal of one; earliest; as, the first day of a month; the first year of a reign. 2. Foremost; in front of, or in advance of, all others. 3. most eminent or exalted; most excellent; chief; highest; as, Demosthenes was the first orator of Greece. at first blush. See Blush. At first hand, from the first or original source; without the intervention of any agent. "It is the intention of the person to reveal it at first hand, by way of mouth, to yourself." (Dickens) First coat The first year's whole profits of a benefice or spiritual living. The earliest effects or results. "See, Father, what first fruits on earth are sprung From thy implanted grace in man!" (Milton) First mate, an officer in a merchant vessel next in rank to the captain. First name, same as Christian name. See Name, First officer, the watch from eight to twelve at midnight; also, the men on duty during that time. First water, the highest quality or purest luster; said of gems, especially of diamond and pearls. Synonym: Primary, primordial, primitive, primeval, pristine, highest, chief, principal, foremost. Origin: OE. First, furst, AS. Fyrst; akin to Icel. Fyrstr, Sw. & Dan. Forste, OHG. Furist, G. Furst prince; a superlatiye form of E. For, fore. See For, Fore, and cf. Formeer, Foremost. Source: Websters Dictionary (01 Mar 1998) |
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| first aid | Treatment that is rendered initially for the care of an emergent condition. (27 Sep 1997) |
| first arch syndrome | <syndrome> Generic term including syndrome's of malformations involving derivatives of the first branchial arch, with or without associated malformations; includes mandibulofacial dysostosis, micrognathia with peromelia, otomandibular dystosis, acrofacial dysostosis, and others. (05 Mar 2000) |
| first cranial nerve | Collective term denoting the numerous olfactory filaments: slender fascicles each composed of the thin, unmyelinated axons of 8 to 12 of the bipolar olfactory receptor cells in the olfactory portion of the nasal mucosa; the olfactory filaments pass through the cribriform plate of the ethmoid bone and enter the olfactory bulb, where they terminate in synaptic contact with mitral cells, tufted cells, and granule cells. See: olfactory tract. Synonym: nervi olfactorii, fila olfactoria, first cranial nerve, nerve of smell, olfactory fila. (05 Mar 2000) |
| first cuneiform bone | The largest of the three cuneiform bones, the medial bone of the distal row of the tarsus, articulating with the intermediate cuneiform, navicular, and first and second metatarsal bones. Synonym: os cuneiforme mediale, first cuneiform bone, wedge bone. (05 Mar 2000) |
| first degree A-V block | See: atrioventricular block. (05 Mar 2000) |
| first degree burn | A burn involving only the epidermis and causing erythema and oedema without vesiculation. Synonym: superficial burn. (05 Mar 2000) |
| first dentition | A tooth of the first set of teeth, comprising 20 in all, that erupts between the mean ages of 6 and 28 months of life. Synonym: dens deciduus, baby tooth, deciduous dentition, dens lacteus, first dentition, milk tooth, primary dentition, primary tooth, temporary tooth. (05 Mar 2000) |
| first duodenal sphincter | The sphincter supposedly located at the level of the aboral extremity of the duodenal bulb. (05 Mar 2000) |
| first finger | The first digit on the radial side of the hand. Synonym: digitus primus, pollex, first finger. Origin: A.S. Thuma (05 Mar 2000) |
| first heart sound | Occurs with ventricular systole and is mainly produced by closure of the atrioventricular valves. (05 Mar 2000) |
| first law of thermodynamics | This law, derived from the principle of conservation of energy, is expressed as E = Q - W, where E is the internal change in energy, Q is the heat the environment transfers into the system, and W is the work the system does. In other words, it means that: The internal energy in a system isolated from other systems remains constant The change in the internal energy of a system that is not isolated is equal to the energy that crosses its boundariesinto or out of other systemsIt can be further extrapolated to mean that despite all the processesgoing on in the universe, the total energy contained in the universeremains constant. (09 Oct 1997) |
| first meiotic division | The first of two consecutive divisions of the nucleus of an eukaryotic cell during the process of meiosis. It includes the following stages of meiosis: prophase I, metaphase I, anaphase I, and telophase I. (09 Oct 1997) |
| first molar | First permanent molar, sixth permanent tooth or fourth deciduous tooth in the maxilla and mandible on either side of the midsagittal plane of the head following the arch form. (05 Mar 2000) |
| first parallel pelvic plane | The upper opening of the true pelvis, bounded anteriorly by the pubic symphysis and the pubic crest on either side, laterally by the iliopectineal lines, and posteriorly by the promontory of the sacrum. Synonym: apertura pelvis superior, aditus pelvis, first parallel pelvic plane, pelvic brim, pelvic inlet, pelvic plane of inlet, plane of inlet. (05 Mar 2000) |
Synonyms : Aid, First, Aids, First, First Aids
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| first law of thermodynamics |
conservation of energy: the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
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| first |
the first element in a countable series; "the first of the month" indicating the beginning unit in a series the first or highest in an ordering or series; "He wanted to be the first" inaugural: serving to set in motion; "the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage" beginning(a): serving to begin; "the beginning canto of the poem"; "the first verse" before anything else; "first we must consider the garter snake" beginning: the time at which something is supposed to begin; "they got an early start"; "she knew from the get-go that he was the man for her" the initial time; "when Felix first saw a garter snake" first base: the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate) ranking above all others; "was first in her class"; "the foremost figure among marine artists"; "the top graduate" highest in pitch or chief among parts or voices or instruments or orchestra sections; "first soprano"; "the first violin section"; "played first horn" before another in time, space, or importance; "I was here first"; "let's do this job first" an honours degree of the highest class being the gear producing the lowest drive speed; "use first gear on steep hills" foremost: prominently forward; "he put his best foot foremost" first gear: the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
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| first cranial nerve |
olfactory nerve: a collective term for numerous olfactory filaments in the nasal mucosa
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| first-degree burn |
burn causing redness of the skin surface
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| first aid |
emergency care given before regular medical aid can be obtained
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| firs | the fielding position of the player on a baseball team who is stationed at first base |
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| firs | the lowest forward gear ratio in the gear box of a motor vehicle |
| firs | (Great Britain) an honours degree of the highest class |
| firs | the first element in a countable series |
| firs | the first or highest in an ordering or series |
| firs | the time at which something begins |
| firs | being the gear producing the lowest drive speed |
| firs | ranking above all others |
| firs | serving to begin |
| firs | serving to set in motion |
| firs | preceding all others in time or space or degree |
| firs | (music) highest in pitch or chief among parts or voices or instruments or orchestra sections |
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